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Module 12: Wireless
Overview
Networking Without Wires
Connecting to a Wireless Network
Working with Offline Files
Lesson 1: Networking Without Wires
What Is a Wireless Network?
Wireless Network Technologies
Wireless Network Security Options
What Is a Wireless Network?
A wireless network:
Wireless networks can work in 2 modes:
Uses radio waves instead of wiresUses radio waves instead of wires
Enables users to roamEnables users to roam
Adds additional security headachesAdds additional security headaches
Ad hocAd hoc
InfrastructureInfrastructure
Wireless Network Technologies
Standard Speeds up to
Pros Cons
802.11a54 Mbps
Fast Speed
Many simultaneous users
Uses 5 GHz frequency
Short-range signals
Not compatible with 802.11b
802.11b 11 MbpsCheap
Good signal range
Slower speeds
Fewer simultaneous users
Uses 2.4 GHz frequency
Interference
802.11g54 Mbps
More simultaneous users
Best signal range
Compatible with 802.11b
Uses 2.4 GHz frequency
Interference
More expensive than 802.11b
Wireless Network Security Options
Option Features
Wired Equivalent Privacy (WEP)
Open system or shared key authentication
RC4 encryption
Wi-Fi Protected Access
(WPA or WPA-2)
User and computer authentication
RC4 with IV Encryption
802.1x Authentication Physical port authentication
Lesson 2: Connecting to a Wireless Network
Hardware for Connecting to a Wireless Network
Wireless Signal Strength
Demonstration: Connecting to a Wireless Network
Process for Troubleshooting a Wireless Network Connection
Hardware for Connecting to a Wireless Network
Connect and configure a WAPConnect and configure a WAP
Configure a client computer to connect to the wireless network Configure a client computer to connect to the wireless network
Wireless Signal Strength
To improve signal strength, move the computer:To improve signal strength, move the computer:
Closer to the WAP Closer to the WAP
Away from devices that might cause interference Away from devices that might cause interference
Demonstration: Connecting to a Wireless Network
Your instructor will demonstrate how to:
Connect to a Wireless Network
Connect to an Unlisted Wireless Network
Process for Troubleshooting a Wireless Network Connection
To run the Windows Network Diagnostics:To run the Windows Network Diagnostics:
Resolve the problem Resolve the problem 55
Identify the problem Identify the problem 44
Review the informationReview the information33
Diagnose the connection Diagnose the connection 22
Attempt to connect to a network Attempt to connect to a network 11
Lesson 3: Working with Offline Files
What Are Offline Files?
Options for Configuring Offline Files
Options for Making a Network File Available Offline
Demonstration: Accessing Offline Files by Using Windows 7
What Are Offline Files?
With Offline Files, you can take your computer off the network and still have access to shared filesWith Offline Files, you can take your computer off the network and still have access to shared files
Options for Configuring Offline Files
With Offline Files, you can choose how your offline files are configuredWith Offline Files, you can choose how your offline files are configured
Options for Making a Network File Available Offline
With Offline Settings, you can choose how your computer makes files available to computers with Offline Files configured
With Offline Settings, you can choose how your computer makes files available to computers with Offline Files configured
Demonstration: Accessing Offline Files by Using Windows 7
Your instructor will demonstrate how to:
Setup an offline share
Access offline files
Edit offline files
Sync offline files
Lab: Networking Mobile Computers
Exercise 1: Configuring a Wireless Network
Exercise 2: Troubleshooting a Wireless Network
Exercise 3: Using Offline Files
Course Evaluation